Finding the Third Proportional to 1,289,128 and 2,836,016

Step by Step Solution

1. Step 1: Write the proportion equation
   1,289,128 : 2,836,016 = 2,836,016 : x
2. Step 2: Convert to fraction form
   1,289,128/2,836,016 = 2,836,016/x
3. Step 3: Cross multiply
   1,289,128x = 2,836,016 × 2,836,016
4. Step 4: Simplify right side
   1,289,128x = 8,042,986,752,256
5. Step 5: Solve for x
   x = 8,042,986,752,256/1,289,128
6. Step 6: Final answer
   x = 6,239,090.88